On Thu, May 8, 2008 at 8:52 AM, Brian A. Seklecki
<bseklecki@collaborativefusion.com> wrote:
quoted text
>  Nagios checks almost never have sufficient debugging mechanisms, and UDP
>  services dont send RST+ICMP.

you should get an ICMP port unreachable if there is no UDP service listening.

i haven't looked at nagios, but i wonder if it's not trying to use NTP
"mode 6" control messages to get more status information out of the
daemon. openntpd doesn't support these queries...

quoted text
>  You an always: $ sudo ntpdate -qdv [host to check]

or "rdate -pnv <host>". quite some time ago i added a check to make
rdate bail out if the server is unsync'd.

...
                if ((data.status & STATUS_ALARM) == STATUS_ALARM) {
                        warnx("Ignoring NTP server with alarm flag set");
                        return (-1);
                }
...

CK

-- 
GDB has a 'break' feature; why doesn't it have 'fix' too?